Table 1 Description of the HEAPSS Study population, cardiac readmission as a selected outcome, and NO2 concentrations in 5 European cities.
City | Period of Enrollment | Period of Follow up | Age Range (yrs) | Population Size | Persons followed | Mean Age (yrs) | Any cardiac readmission during follow up | Mean NO2 [μg/m3] | Maximum NO2 [μg/m3] | |
|---|---|---|---|---|---|---|---|---|---|---|
N | λ | |||||||||
Augsburg | 1995–1999 | 1995–2000 | 35–74 | 300,902 | 1560 | 60.4 | 286 | 0.14 | 49.6 | 171.8 |
Barcelona | 1992–1995 | 1992–2000 | 35–79 | 893,601 | 1134 | 61.9 | 296 | 0.09 | 47.7 | 148.0 |
Helsinki | 1993–1999 | 1993–2000 | 35+ | 297,410 | 4026 | 69.2 | 1301 | 0.45 | 30.1 | 173.4 |
Rome | 1998–2000 | 1998–2001 | 35+ | 1,616,356 | 7384 | 67.0 | 1916 | 1.34 | 70.0 | 140.5 |
Stockholm | 1994–1999 | 1994–2000 | 35+ | 548,113 | 7902 | 73.3 | 2856 | 1.23 | 22.8 | 81.2 |